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Shalnov [3]
3 years ago
15

What value of x makes this equation true? 25 = -7 + x

Mathematics
2 answers:
Brut [27]3 years ago
4 0

Answer:

x=32 makes this equation true

Step-by-step explanation:

Well first we have to solve this to see-

25=-7+x     Add 7 to both sides to get x by itself

+7   +7           Adding 7 to -7 makes it 0 so it goes away

32=x    This is our final answer

krok68 [10]3 years ago
4 0
X=32

Flip it x=-7-25

calculate the difference

-x=-32

Change the signs of the equation

X=32
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What is five to the -7th power times five to the <br> 12 power
leva [86]
5^-7 * 5^12

Because the base is the same, add the exponents.
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Final answer: 5^5, or 3125
5 0
3 years ago
Read 2 more answers
shaquana has a deck that measures 18 feet by 15 feet. She wants to increase each dimension by equal lengths so that its area tri
Svetach [21]

to increase each dimension by equal lengths so that its area triples is 12 feet.

The given dimensions are 18 feet by 15 feet.

We need to find how much should each dimension increase.

Shaquana wants to increase each dimension by equal lengths so that its area triples.

Let the increased length be x.

So, length =18+x feet and width=15+x feet.

As we know, the area of a deck=Length×Width

The original area of a deck=18×15=270 square feet.

Now, the new area of a deck=(18+x )×(15+x)=3×270

⇒270+15x+18x+x²=810 square feet

⇒x²+33x-540=0

Here, a=1, b=33 and c=-540 in x=\frac{-b\±\sqrt{b^{2-4ac} } }{2a}.

⇒x=\frac{-33\±\sqrt{33^{2} -4 \times (-540)} }{2 \times 1}

⇒x=\frac{-33\±\sqrt{1089 +2160} }{2 \times 1}=\frac{-33\±57}{2}

⇒x=-45 or x=12

Length can not be a negative integer.

Therefore, to increase each dimension by equal lengths so that its area triples is 12 feet.

To learn more about the area of a rectangle visit:

brainly.com/question/20693059.

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6 0
2 years ago
The profit that a company earns each month depend on the amount of product sold, p, for $855 each and the amount of money spent
maks197457 [2]
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3 0
3 years ago
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ryzh [129]

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the equations that do work with the point (3,-3) are (2x+4y=-6)

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Step-by-step explanation:

so to work one of these problems you take (2x+4y=-6) and plug in your variables.

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then you're going to multiply

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the subtract the negative twelve from the 6

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so we get a true statement. if you do this and the two numbers don't match then the equation does not work with your point. I hope this helps!

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